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No. 627,|20. Patented June 20, I899. W. H. JON-ES.,

STILL.

(Application filed Feb. 17, 1899.)

LNn Model.)

WITNEEEEE I NTCIIR llnrrnn STATES PATENT OFFICE.

WILLIAM H. JONES, OF CAMBRIDGE, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TONATHANIEL M. JONES, CF SAME PLACE.

STILL.

SPECIFICATION forming part of Letters Patent No. 627,120, dated June 20,1899.

Application filed February 17, 1899. Serial No. 705,753. (No model.)

To ail whom it may concern:

Be it known that I, WILLIAM H. J ONES, a citizen of the United States,residing at Cambridge, in the county of Middlesex and State ofMassachusetts, have invented new and useful Improvements in Stills, ofwhich the following is a specification.

This invention relates to certain improvements in stills for condensingand distilling water; and it relates to that class of stills in whichsteam is conducted into the still and air conveyed therein from theoutside and mixed with the steam immediately before it passes into thecondensing-chambers.

The invention consists in the novel construction and arrangement ofparts hereinafter-described whereby the aeration and distillation of thesteam entering the still are rendered more perfect and the process regu-2o lated with exactness and rendered practicable, more especially on asomewhat-extended scale, all as illustrated in the accompanyingdrawings, in which- Figure 1 is a central vertical section of a stilland portions of its connections embodying my invention. Fig. 2 is asection taken on line X, Fig. 1. Fig. 3 is an enlarged horizontalsection taken on line Y, Fig. at. Fig. 4 is an enlarged vertical sectionin detail of 0 the regulating mechanism at the upper end of one of thesteam-chambers. Fig. 5 is a horizontal section, similar to thatindicated in Fig. 2, of a modification. Fig. 6 is an enlargedcross-section of the air-duct, showing the reg- 5 ulating valve ordamper.

Similar letters of reference indicate corresponding parts.

AA represent two vertical annular steamchambers arranged concentrically,the inner 40 one inclosing a central vertical cylindrical steam-chamberA. These chambers are of equal height and are so arranged that theannular spaces B between them are equal in width and constitutewater-chambers. These 5 annular chambers A and A are condensingchambersand are closed at their upper ends except for regulating exhaust-valves,below described. The water-chambers B are open at the top and closed atthe bottom by means of the horizontal walls B, connecting the chambers AA. The outer wall of the outer annular condensing or steam chamber isextended downward and bolted at its lower end to the contracted portionor ring D of the cylindricalcase D, which surrounds and incloses thesteam-chambers and is provided Witha top D, furnished with a suitableoutlet (1. The outer wall of the annular chamber A has secured to itsouter side the horizontal annular trough E, which is set atabout thevsame height as the lower ends B of the Water-chainbers B, and a smalltube 6 extends from the bottom of said trough downward and out throughthe part cl of the portion D. I

The regulating-valves at the upper ends of the steam or condensingchambers A A consist of the vertical tubes C, each provided withopposite openings or ports C, said tubes connecting with the interior ofthe chambers A A and the caps C, provided with the opposite ports 0". Byrotating the caps the ports 0 and C may of course be made to coincide ornot, as desired F is the pipe through which steam supplied from asuitable boiler enters the still. The portion of this pipe F which isinside the still is provided with a number of vertical branch pipes E,which extend from the upper side of the pipe F and open into the chamberH below the annular chambers A A B. A nu1nher of pipes K lead into thesame chamber above the steam-pipe F, but below the upper ends of thepipes F, each of said pipes K being provided with a suit-able regulatingvalve or damper K. A water-pipe L extends into the casing near its upperend and thence down into one of the water-chambers B. A pipe P leadsthrough the bottom of the still and enables the distillate to be drawnoff.

In practical operation steam from a boiler is injected into the chamber11 through the pipe F and the series of pipes F, the latter dividing theblast and directing it upward into the steam-chambers A A. At the sametime air is introduced into the chamber H 5 through the air-ducts K. Theair and steam are thus mixed in said chamber H and pass up into thesteam-chambers A A. At or about the same time cold water is introducedthrough the pipe L into one of the annular Ioo water-chambers B and,overflowing it, flows into the other chambers, which are also overthechambers B and runs down the outer- Wall of the chamber A into thetroughE and is carried off by the pipe 6. This continuous flow of Waterkeeps the walls of the steamchambers comparatively cool, so that theaerated steam which is forced up thereinto from the pipes F condenses onthe inner walls of said chambers A A and runs down said walls into thechamber H, from which the distillate is drawn off by means of the pipeP. During this process the ports in the valves 0 O are usually aboutone-third open, as shown in Figs. 1 and 3, for the purpose of allowingthe surplus steam or the steam containing gases brought with it into thestill to pass off at the upper ends of the condensing-chambers and outthrough the pipe 61. In practice the regulation by means of the valves Kof the air passing through the ducts K is attended to with great careand said valves K and the valves 0 C are adjusted with exact relation toeach other. Moreover, the amount of steam in the blast and the amount ofair entering through the ducts are regulated with relation to each otherand with due regard to the capacity of the steam for receiving and thecondensed steam for retaining the air, so that the aeration may be ascomplete as possible.

In practice the steam is usually filtered before it is introduced intothe still, and the distillate is filtered and cooled after it leaves thestill, the pipe P leading to a suitable coil annular, nor that saidcentral chamber should be round, as indicated in Figs. 1 and 2.

In Fig. 5the chambers and also the central chamber are square and arealternately steam and water chambers, and the case corresponds to themin shape. tion, however, are exactly the same as Where the'chambers areannular. There are certain places, as in ships and vessels of a certaindescription, where a square still is desirable, and hence I do not Wishto confine myself to the circular shape of the chambers or still.

Theprinciple and opera The number of steam or condensing chambers andwater -chambers alternately arranged, as shown, may be varied accordingto circumstances.

Having thus fully described my invention, What I claim, and desire tosecure by Letters Patent, is

1. In a still of the character described, the series ofconcentrically-arranged steam or condensing chambers A, A closed attheir upper ends and provided at said ends with means for allowing andregulating the escape of steam and air, said condensing-chambers openingat their lower ends into the chamber H; the concentrically-arrangedwater-chance bers 13 arranged alternately with the condensing-chambersand open at their upper and closed at their lower ends, the wallsbetween said condensing and water chambers being common to both; thecase D inclosing the said chambers; the steam-inlet tube F opening intothe chamber H; the air-ducts K opening into said chamber II near thelevel of the steam-tube, and provided with suitable'regulators; andmeans for admitting water into and circulating it within theWater-chambers B, substantially as described.

2. In a still of the character described, the series ofconcentrically-arranged steam or condensing chambers A, A closed attheir upper ends and provided at said ends with means for allowing andregulating the escape of steam and air, said condensing-chambers openingat their lower ends into the chamber H; the concentrically-arrangedwater-chambers B arranged alternately with the condensing-chambers andopen at their upper and closed at their lower ends, the walls betweensaid condensing and Water chambers being common to both; the case Dinclosing the said chambers; the steam-inlet tube F opening into thechamber II; the branch pipes F extending from the tube F toward thelower ends of the condensing-chambers and dividing and directing theblast of steam; the air-ducts K opening into said chamber H near thelevel of the steam-tube, and provided with regulators; and means foradmitting Water into and circulating it within the Waterchambers 13,substantially as set forth.

WILLIAM H. JONES. Witnesses:

HENRY W. WILLIAMS, A. N. BoNNnv.

